Ok so that's two brands that have this issue due to lack of 12v current carrying capacity: X-Pin and Rottendog. What's the deal here? Why is it so difficult for aftermarket manufacturers to get this right? Just add a bridge rectifier and 18,000uf 25v capacitor and you're done. There is absolutely no need for a regulated 12v rail, all they do is cause issues!
Stuff like this has caused me to start buying refurbished OEM power supplies again.